Whittier (CA)
September
Weather in Whittier, California for September 2027
Your guide to Whittier weather in September - trends and predictions
In general, the average temperature in Whittier at the beginning of September is 34.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.9 °C by the end of September.
Precipitation in Whittier during September is a rare event, with an average of fewer than 2 rainy days.
Is September a good time to visit Whittier? check out the best time to travel to Whittier page.
✨ Is September a good time to visit Whittier? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
29
Dry days
1
Rainy days
0
Snow days
30°/20°
Temperatures
17 km/h
Avg max wind
58 %
Avg humidity
Whittier Weather September
Move between months or click on a day
Temperatures trend during September in Whittier
See the weather trend as well as the moving average line
September weather in Whittier day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 33° /20° | 0 mm | 9 | |
| Sept. 2 | Sunny | 34° /21° | 0 mm | 9 | |
| Sept. 3 | Sunny | 34° /22° | 0 mm | 9 | |
| Sept. 4 | Sunny | 32° /21° | 0 mm | 9 | |
| Sept. 5 | Sunny | 36° /22° | 0 mm | 9 | |
| Sept. 6 |  Patchy rain possible | 34° /23° | 1.8 mm | 7 | |
| Sept. 7 | Sunny | 36° /23° | 0.4 mm | 7 | |
| Sept. 8 | Sunny | 37° /25° | 0 mm | 9 | |
| Sept. 9 | Sunny | 35° /24° | 0 mm | 7 | |
| Sept. 10 | Sunny | 31° /22° | 0 mm | 7 | |
| Sept. 11 | Sunny | 28° /20° | 0 mm | 7 | |
| Sept. 12 | Sunny | 27° /19° | 0 mm | 7 | |
| Sept. 13 |  Cloudy | 26° /19° | 0 mm | 7 | |
| Sept. 14 | Cloudy | 28° /19° | 0 mm | 8 | |
| Sept. 15 |  Partly cloudy | 28° /18° | 0 mm | 8 | |
| Sept. 16 | Patchy rain possible | 28° /19° | 0.1 mm | 8 | |
| Sept. 17 | Sunny | 26° /19° | 0 mm | 7 | |
| Sept. 18 |  Light rain | 26° /19° | 3.8 mm | 7 | |
| Sept. 19 | Sunny | 26° /18° | 0 mm | 7 | |
| Sept. 20 |  Overcast | 26° /17° | 0 mm | 5 | |
| Sept. 21 | Overcast | 25° /18° | 0 mm | 6 | |
| Sept. 22 | Partly cloudy | 28° /18° | 0 mm | 7.8 | |
| Sept. 23 | Partly cloudy | 32° /20° | 0 mm | 7.7 | |
| Sept. 24 | Partly cloudy | 30° /19° | 0 mm | 7.6 | |
| Sept. 25 | Partly cloudy | 29° /18° | 0 mm | 7 | |
| Sept. 26 | Overcast | 27° /18° | 0 mm | 6 | |
| Sept. 27 | Overcast | 27° /18° | 0 mm | 4 | |
| Sept. 28 | Partly cloudy | 27° /18° | 0 mm | 6 | |
| Sept. 29 | Partly cloudy | 27° /17° | 0 mm | 7 | |
| Sept. 30 | Partly cloudy | 28° /17° | 0 mm | 7 | |
| Next | |||||
Important Notice
Our weather forecast for Whittier in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Whittier forecast closer to your planned date for the most up-to-date weather information.
Change Month
Whittier in September - FAQ
What are the expected maximum and minimum temperatures in Whittier during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Whittier during September?
Rainfall in Whittier during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Whittier during September?
The average wind speed in Whittier during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Whittier
Explore the daily rainfall trends and prepare for Whittiers September weather 💧
Typically, Whittier has 1 rainy days in September with a total of 6.2 mm of rainfall.
UV exposure in Whittier during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Whittier weather pages
You are here
Where is Whittier?Get accurate weather forecasts for Whittier, located at latitude 33.979 and longitude -118.033. Stay updated with localized weather information tailored for Whittier.
Found a mistake?
We appreciate your attention to details. Tell us here.